Recording device.



A. L. MARSH & J. PATRICK.

RECORDING DEVICE.

APPLICATION FILED MAY 29, 1911? 1,048,188- Patented D9024,

3 SHEETS SHEEWW A. L. MARSH & J. PATRIGK RECORDING DEVIGE, APPLICATION FILED- MAY 2E1, 1911.

Patented Dec. 24, 1912.

A. L. MARSH :5; J. PATRICK.

RECORDING DEVICE.

APPLIOATION FILED MAY29,1911.

Patented Dec. 24, 1912.

3 SHEETS-SHEET 3.

[me/2% 71 zerif Jaws/ 21 am IIIII- UNITED STATES PATENT OFFICE.

ALBERT L. MARSH AND JosH'UA PATRICK, or DETROIT, mcmenn, assrsnons To nosxms MANUFACTURING compan or DETROIT, MICHIGAN, CORPORATION OF MICHIGAN.

RECORDING mivxcn.

Specification of Letters Patent. Patented Dec, 24, 1912.

Application filed K3129, 1911. Serial No. 630,072.

To all whom it may concern:

Be it known that we, ALBERT L. Manse and JOSHUA Pn'rarcn, citizens of the United States, residing at Detroit, in the county of \Vayne and State of Michigan, have invented a new and. useful Improvement in Recording Devices, of which the following is a specification.

This invention relates, generally stated, to improvement in registering, electric current measuring, and the like devices which operate to deline, upon a suitable sheet or chart, a comprehensive and permanent chronological record of the operations, including variations in the operations, of ap paratus with which it is connected.

The object is to provide recording devices of this class with certain novel and improved features and details of construction, which contribute toward. rendering the devices preferable in use, as to certain particulars at least, to other devices for the same general purposes hitherto provided. The

improvements 1nay, for example, be applied with benefit to volt, ampere, watt, pressure and other mcasurmg appliances or devices where it is desired to produce a permanent chronological record of measurements.

In the accompanying drawings the improvements are illustrated in connection with a thermo-electric pyrometer wherein the records are produced on a chart by a pyrometric pointer under the action of a striker which, in its turn, is caused by clock-work to operate periodically.

Referring to the drawings-Figure 1 is a face view of a chronometric pyrometer provided with the improvements, a part of the chart, and carbon paper employed there with, being broken away to expose details which would otherwise be hidden; Fig. .2, an enlarged, broken and partly sectional view showing details of the mechanism; Fig.

3, an enlarged section on line 3 in Fig. 1; Fig. 4, an enlarged sectional view lllustrating the construction of a clamp on the hourshaft or arbor of the clock-work for holding the-chart and carbon paper; Fig. 5, an enlarged perspective view of a striker-actuating cam mounted on the minute shaft or arbor of the clock-work; and Fig. 6, an enlarged broken section taken on. line 6 m Fig. 1. a

The mechanism is all inclosed in a suitable casing 10 having a removable front '11. In

of the clock-work and 20 the minute-shaft or arbor.

Mounted against the back 10in the lower part of the casing is the permanent magnet 21 and attendant current-measuring mechanism, in circuit with the binding-posts 22 on the casing, which operate in the usual manner' to swing the pointer 23, under changes of temperature of a thermo-couple (not shown) the leads of which are connected to the binding-posts. Also mounted againstthe back 10 is a frame 24; having bearing cars 25, for a rock-shaft 26, forming part of a striker-frame. The striker-frame consists of the said shaft 26, rods. 27 and 28 fastened to the shaft, a segmental bar or striker 29 mounted on the rods and a counterbalancing weight 30 fastened to the shaft. Surrounding the shaft 26 and connected at one end therewith and at its'opposite end to the striker-frame support is a return spring 31. On the end of the pointer 23 is a head formed on its rear side to present an anvil 32 and provided in its forward side with a socket or sleeve 33 to receive a hard metal stylus or marker 34, which works through a segmental slot 35 in the faceplate 13. F astened to the minuteshaft '20 is a double cam 36 rotating against the bent end of the rod 27 of the striker. frame.

Under changes of temperature of the tion shown, the cam-36 is given one complete revol'oi-ioo escbfzoioece coal 4 oi? com feces operates to retract tee sir'ilztecfmme sway from the or cm i until, an ebi'uyssbocider 38 passes one Peleoses the we 27 when Elie lcitei' is swung co the sidvencecl position indicated. in 5, ceos iisg the her 29 of he sirikeefmme to engage 1 force die styles or ins-size? 34; through the shoes orcil stoppeclby (fee pistes or series-e fez-med by the glass 16. V

The obs-Pi; or record sheet is iii. the fem-o o'i o disk and translucent paper iisvisg primed. upon its obverse surface accurate chronological and temperature scales which may be, for example, as illustrsie in 1. lieced egg-zines the reverse face of the chart is e 'simiisi" disk of paper, or the like, faced carbon, or other pirioi-ing material, which ib preferably color contrasting both Wiijil 'thehof the trenslocent paper and that of ibe prioiodi scales thereon.

The houvsbofs 1%- {see i 3;} lies e reduced thresdeel esteiosios ecocl sboulzles so. On ibe extension, and e smog-xi ogoinsi) i the shoulder 19; by not is, is so externally threaded sleeve on which is screwed e copslmpeci clsmpin .membee 45. The clamp ring-member 45 is loco. with ommier clan iping face or ecige 2 which is preferably serrated or miliecl. to remiss ii; rough. The numeral 2? oiesignotes c removsbie cupsiiepecl clamping-member which into the clamping-member 45 cncl screws upon the threool of the sleeve 44. It has annulmclampingfienge l8 cooperating with the clompiz cos of the member The clsmp' H1 45 projects through. on opening in the plate 13 to a piece slightly beyond the from surfoce thereof. disks or sheets 39, 4%, ere pirovi'clecl with central openings 11st lair e enough to receive the cnp portion of the el=nnping-membcr 4!,

whereby they may be clamped between the parts 46., 4:8, oi? the clamping-membei's To place the disks in position the clam pingmeinber l7 removed from bliss SiQzvG 4% oncl the dirk and lilies the click O'cleced thereon The clmnpingmembcr is ken pieced. upon the sleeve and. to clamp the disks oi: cez' iers to roisio wish the hem-shaft. isciiitste lie-so ling and tuinio of lbs clumping member ii", it is provided will} ending pin ll, iitllc space necessity there should between the plsle the specs should. be soiiicient to disks to rotate without lflfiiffill against either said piste oz o emit "7 when The clamping members 4:7, constructcci do scribed, bold moss, eul the flea:

hal es mimuie produce a preeticsliy continuo'os iin sietcci, is positioned. along the temperature scale in accordance with the temperature so the thermocouple, as usual in devices of this class, anii every bslfiminute the strikerframe is actuated by the cam 36, as before explained, to press the stylus 34 carried by the pointer against the rear face of the carbon sheet 40. This presses the chart against fhe platen formed by the glass 16 and max-k is made upon the rear face oi the translucent chart which is visibie through latter and the gloss iimneistely she pointer is thus actuated the cam 36 starts to retract the si'rilzei: ewey :liom t: pointer and. permit the leiier to retro-cc, so that the mark in. each instance is mei'ciy a (lot. These ciois being. formed each hsifat every point recording upon. the eberstii temperature mod the time at which the mark was made.

Among the eclvsnbwesincident to our improvements are that oy the use of chart-s of translucent paper, carbon pope may be employed as described, dispensing with either ink or the lempblecl: coated m chemicslly prepares papers hitherto commooiy used in making records; one or a pic iiity of obs-rt and carbon sheets may be placed in the device so that, if (iesired, a plurality of records, 'ofiten found eiesirsbie, may be made simultaneously; as the pointei snci siriiter mechanism are located behind the chart, nothing stsmis in front of the latter to ob street the View of any part thereof hile it is in the device; the counterweight 30 operates to balance the striker-frame so cm the device Will operate at any aegis; the charts being of translucent paper, bios prints may be readily macle therefrom when dashes; and all the Working pail-ts are back of the face-blots 13, so tbab there is no danger of disturbance or injury thereto when choices are inserted or removed.

We have stated limb the cheri; or record sheet sbouicl be translucent, c516. the-most desirable paper for his purpose time We have employed is Wllili; is called Bevsrisn parchment in the trade. This paper though 'tmnsiucent in character is 5111 3- cieiitly opaque to hide to a great extent the color of the carbon sheet placed against its reverse side. Any marl: from ilie carbon sheet upon its reverse skin? is ole i'ly visible however at its obverse surface. The chart shall be construed as broadly as the prior,

state of the art will warrant. I

What we claim as new and desire to secure by Letters Patent, is:

' 1. In a device of the character described, the combination of recordmarking mechanism, comprising a marker, shifting and actuating mechanisms for the marker, means for holding a carbon, or the like, sheet in front of said marker and a translucent record-sheet in front of said carbon-sheet, and a transparent platen in front of said recordsheet, whereby the record is produced against the resistance of the platen through the carbon-sheet upon the reverse surface of the record sheet, and the record is exposed to view, simultaneously with its production, at the obverse surface of the record-sheet unobstructed by the marker, and the translucent sheet serves to hide the carbon-sheet, for the purpose set forth. 2. In a recording device of the character described, a casing, a face-plate forming the frontwall of the casing, cl ckwork in the casing having a. slowly rotating and a quickly lactating arbor, pyrcnietric Incchw, having a pointer, a platen nistn in the casin. in front of and spaced from in record meet-engaging means in y operatively connected with the SlOM ing arbor, a record-producing in pointer working through an openii face-plate, a striker in the casing cotiperating with the marker to press the same into mark-producing relation with the recordsheet, and periodic actuating means for the striker operatively connected with said face-plate,

iuicklv rotatin arbor. l e

3. In a recording device of the character described, a casing, a face-plate forming the front wall of the casing, clockwork in the casing baring slowly rotating and a (prickly rotating arbor, pyrornetric mechanism in the casing having a pointer, a platen in front of and spaced from the face-plate, a clamping device operatively connected with the slowly rotating arbor projecting through tie face-plate into said space for engaging reccrdsheet at the central portion thereof, recordproducing-marker on the pointer working through an opening in the face-plate, a'striker in the casing cooperating with {the marker to'press the same into mark-proclucing relation with the record-sheet, and periodic actuating means for the striker operatively connected with said quickly rotating arbor.

l. In a recording device of the character described, a casing, a face-plate forming the front wall of the casing, clockwork in the casing having a slowly rotating and a quickly rotating arbor, pyrometric mechanism in the casing having a pointer, a transparent platen in front of and spaced from the faceplate, means for holding a trans lucent record-sheet and a carbon, or the like, sheet in the space between the face-plate and platen, and operatively connecting them with the slowly-rotating arbor, a recordproducing-marker on the pointer working through an opening in the faceplate, a striker in the casing cooperating with the marker to press the same in the direction of the platen against the reverse surface of the for the striker operatively connected with said quickly rotating arbor.

5. In a recording device of the character described, a casing, a faceplate forming the front wall of the casing, clockwlork in the casing having a slowly rotating and i a quickly rotating arbor, pyrometric mechanism in the casing having a pointer, a transparent platen in front of and spaced from the face-plate, a clamping device on the slowly rotating arbor projecting through the face-plate in lieu thereof. for holding arccord-sheet and carbon or the like, sheet at the central portions thereof, a record-producing marker on the pointer working through an enmg in the face-plate in the direction of the platen a striker in' the caring for the marine" and an actuating cam for the striker on I, quickly rotating arbor.

ALBERT L. MARSH. JOSHUA PATRICK.

In presence 01 A. G. Micheline, WM. W. TALMAN;

carbon sheet, and periodic actuating means 

